Front Page HELP needed

I am a relatively new FP2000 user (purchased web business already up & running & rec'd quick basic training on mandatory elements, only). I have managed so far but have now encountered a problem that is not addressed in the FP for Dummies book I have. I was deleting some files (I'm pretty certain that I did not delete the wrong files since these had just recently been added & were at the bottom of my Folder list)... Anyway, all of a sudden I realized that my borders were missing (the ones that are suppossed to be present on all pages). I'm not sure if I inadverdently clicked something I didn't mean to or what, but I can't seem to get the borders back... every page opens W/O borders. I'm sensing that this is probably something stupid that I am unaware of due to my lack of FP knowledge. If anyone can help, I'd appreciate it. Thanks!!!

 

Are you using style(css) sheets? If so maybe you deleted one. Personally i'd recommend using dreamweaverMX rather than frontpage.